While I usually avoid PowerPoint presentations, Perun is a great presenter of information and he goes into great detail here about artillery. He covers one thing that NEVER gets mentioned, but that we 13Bravos are constantly on guard for... Barrel life. It is what doomed the railgun and (in my own opinion) is the Achilles heel of the M777 and the Hawkeye 105mm howitzers. Sadly, my concerns seem to be born out in Ukraine.
https://youtu.be/EMEpxX7rS5I
Here is another good video as well...
https://youtu.be/7CmXz8Qd9yw
Swag